Geometry

Question Analysis:
This question requires recognizing a glide reflection among other transformations.

Key Concept Explanation:
A glide reflection must:
Begin with a reflection.
Be followed by a translation parallel to the reflection line.

Step-by-Step Solution:
Option A: Correct. Reflection over x-axis (y = 0), followed by translation (3, 0) (parallel to x-axis).
Option B: Incorrect. Rotation is involved, not a glide reflection.
Option C: Incorrect. It is not begin with reflection.
Option D: Incorrect. Dilation is not part of a glide reflection.

Common Mistakes:
Assuming any reflection + translation...